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UALR Radiation Safety Office

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UALR Radiation Safety Office ETAS-239 501-569 8210 Graduate Institute of Technology University of Arkansas at Little Rock Ionizing and Non-ionizing radiation? – PowerPoint PPT presentation

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Title: UALR Radiation Safety Office


1
UALR Radiation Safety Office
ETAS-239 501-569 8210 Graduate Institute of
Technology University of Arkansas at Little Rock
2
Regulatory Authority
  • Nuclear Regulatory Commission (NRC)
  • EPA, DoE, DoT, OSHA
  • Agreement State
  • Arkansas Department of Health
  • Radiation Control and Emergency and Management
  • UALR Radiation Safety Office
  • Radiation License- commitment to provide
    personnel training

3
Individuals Requiring Radiation Safety Training
  • Three general categories of UALR employees with
    respect to their exposure to radiation
  • Radiation Workers Those workers whose major
    responsibilities involve working with sources of
    ionizing radiation or radioactive material.
  • Ancillary Workers All personnel who may come in
    contact with or enter an area that contains
    radioactive material or sources of ionizing
    radiation.
  • Non-Radiation Workers personnel who would not
    normally be expected to encounter radioactive
    material or radiation sources in the course of
    their employment at UALR. This group does not
    require radiation training.

4
Radiation Safety Training for Ancillary Personnel
Any individual who works near areas where
radioactive material is used or who may have
reason to enter such an area must participate in
a one hour awareness training session provided by
the UALR Radiation Safety Officer. This
training is for ancillary personnel and does not
replace training for radiation workers. All new
employees working in areas containing radioactive
materials are required to attend this training.
5
Radiation Safety Training Contents
  • What is radiation?
  • Where is it located on campus?
  • How to know if there is a radiation source or
    radiation area- Symbols?
  • How to protect from radiation exposure?
  • What to do in case of an emergency?
  • Upon completion of this training you may be
    authorized to enter some restricted areas
    containing radioactive material. However, you may
    not handle radioactive materials directly. A
    record of completion of the training will be
    documented with the radiation safety office.

6
What is Radiation?
Invisible energy waves or particles
What is Radioactivity?
The radioactivity is the property of some atoms
to spontaneously give off energy as particles or
rays. The atoms that make up the radioactive
materials are the source of radiation.
7
Ionizing and Non-ionizing radiation?
  • Radiation carries a range of energy forming an
    electromagnetic spectrum.
  • Radiation that does not have enough energy to
    break chemical bonds but can vibrate atom is
    referred to as Ionizing Radiations e.g.
    radiowaves, microwaves, infrared, visible light
    etc.
  • Radiation that has enough energy to break
    chemical bonds is referred to as 'ionizing
    radiation, e.g. alpha particles, beta particles,
    gamma rays etc.

8
Sources of Ionizing Radiation
  • Naturally Occurring
  • Consumer Products
  • Foods and Containers
  • Medical Procedures
  • Nuclear Plants
  • Radiological Sites
  • Government Industry

9
Ionizing Radiation
10
Location of Radiation Areas on the Campus
ETAS Building 4th Floor Central Storage Facility
(ETAS-429A) Applied Science/ Bioscience
(ETAS-427, ETAS-424) Science Laboratory
Building (SCLB) 3rd Floor Biology
(SCLB-362) 4th Floor Chemistry (SCLB-471)
11
How to know if there is a radiation source or
radiation area- Symbols?
12
How to know if there is a radiation source or
radiation area- Symbols?
"CAUTION RADIATION AREA"
CAUTION RADIOACTIVE MATERIALS"
13
Radiation Package Symbols
14
Radiation Protection Basics
Shielding
Time
Distance
15
Protection from External Exposure
Protective Devices Shielding lab
coats gloves, Masks eye protection proper
monitoring public perception
16
Protection from Internal Exposure
Mode of Entry into Body Inhalation Ingestion Ab
sorption Injection
17
Tissue Damage and Health Effects
  • Breakage of Chemical Bonds
  • Formation of New Chemical Bonds or Cross linkages
  • Damage to Macromolecules (DNA, RNA, Protein etc.
  • Production of Free Radicals
  • Overexposure may cause deformity, cancer etc.

18
What About Disposing of Radioactive Waste?
  • Disposal - a complex issue, please do not pick up
    any radiation waste
  • Radiation Safety Officer can only dispose of
    radiation waste
  • Proper disposal - a key to protecting public
    health and environment
  • Different types of wastes-
  • Solid, liquid, Scintillation vials
  • Contamination with biohazard materials
  • Short Half Life (decayed in storage facility)
  • Long Half Life (disposed of by professional
    companies)
  • Seal Sources (disposed of by professional
    companies or returned to the manufacturer)

19
Emergency Contacts
Radiation Safety Officer 501-569-8210 Assistant
Radiation Safety Officer 501-569-8003 After
Hours Public Safety 501-569-3550 Also check NRC
Notice to Employees posted in the radiation use
and storage areas
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